Technical gazette, Vol. 25 No. 4, 2018.
Original scientific paper
https://doi.org/10.17559/TV-20170327134630
Strengthening Effect after Disintegration of Stainless Steel Using Pulsating Water Jet
Sergej Hloch
; Institute of Geonics of the CAS, v.v.i, Studentská 1768, 708-00 Ostrava-Poruba, Czech Republic
Madhulika Srivastava
; Indian School of Mines, National Highway 32, Dhanbad, Jharkhand 826004, India
Jolanta B. Krolczyk
; Opole University of Technology, 76 Prószkowska Street, 45-758 Opole, Poland
Somnath Chattopadhyaya
; Indian School of Mines, National Highway 32, Dhanbad, Jharkhand 826004, India
Dominika Lehocká
; Faculty of Manufacturing Technologies, Technical Universtity of Košice with a seat in Prešov, Bayerova 1, 080 01 Prešov, Slovak Republic
Vladimír Simkulet
; Faculty of Manufacturing Technologies, Technical Universtity of Košice with a seat in Prešov, Bayerova 1, 080 01 Prešov, Slovak Republic
Grzegorz M. Krolczyk
; Opole University of Technology, 76 Prószkowska Street, 45-758 Opole, Poland
Abstract
The article deals with the measurement of micro-hardness of the track by the action of ultrasonic excitation of pulsating water jet. The cumulative effect of liquid matter in the form of droplets concentrated in waveform measurements was provided in horizontal and vertical direction to material core (AISI 304). The material was subjected to pressures of p = 40, 50 and 60 MPa with the actuator working at a frequency of 20,14 kHz and traverse speed v = 1,1 mm/s, v = 0,80 mm/s and v = 0,30 mm/s respectively. The micro hardness measurement was carried out after machining it by pulsating water jet. The values were recorded in the zone located transversally under the trace to the depth of 1,5 mm with 0,1 mm distance between successive points. It was found that the deformation of material was ascertained from the boundary to the outer environment created by pulsating water jet to the inner core of the material. The results indicate that the pressure was the most influential parameter, which was responsible for the deformation strengthening of the material.
Keywords
deformation; microhardness; pulsating water jet
Hrčak ID:
204455
URI
Publication date:
20.8.2018.
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